linux-kernel - Re: [PATCH 5/6] gpio/omap: fix trigger type to unsigned

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Date:	Thu, 23 Feb 2012 14:30:55 +0200
From:	Felipe Balbi <balbi@...com>
To:	Tarun Kanti DebBarma <tarun.kanti@...com>
Cc:	linux-omap@...r.kernel.org, grant.likely@...retlab.ca,
	khilman@...com, tony@...mide.com, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 5/6] gpio/omap: fix trigger type to unsigned

On Thu, Feb 23, 2012 at 05:40:30PM +0530, Tarun Kanti DebBarma wrote:
> The GPIO trigger parameter is of type unsigned.
> enum {
>         IRQ_TYPE_NONE           = 0x00000000,
>         IRQ_TYPE_EDGE_RISING    = 0x00000001,
>         IRQ_TYPE_EDGE_FALLING   = 0x00000002,
>         IRQ_TYPE_EDGE_BOTH      = (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING),
>         IRQ_TYPE_LEVEL_HIGH     = 0x00000004,
>         IRQ_TYPE_LEVEL_LOW      = 0x00000008,
>         IRQ_TYPE_LEVEL_MASK     = (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH),
>         IRQ_TYPE_SENSE_MASK     = 0x0000000f,
> 
>         IRQ_TYPE_PROBE          = 0x00000010,
> ...
> };
> Even though gpio_irq_type(struct irq_data *d, unsigned type) has the right type
> of parameter, the subsequent called functions set_gpio_triggering() and
> set_gpio_trigger() wrongly makes it signed integer. Fix this.
> 
> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@...com>

Cool, I guess sparse would also have caught that error :-)

Acked-by: Felipe Balbi <balbi@...com>

-- 
balbi

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